Adoption laws don’t apply to people who were born using donated sperm or eggs and want to learn the identity of a biological parent, says a B.C. government lawyer attempting to overturn a judge’s decision.

Leah Greathead told the Appeal Court of B.C. on Tuesday that a lower court erred in a ruling that favoured a woman who was conceived in 1982 at a Vancouver fertility clinic with the help of a sperm donor.

Olivia Pratten sued the province last year because records pertaining to egg and sperm donors can be legally destroyed after six years, meaning people like her don’t have the same rights as adopted children to learn about their biological fathers.